Con estructura compacta, high-efficiency control and reliable performance, Danfoss FC-051P18KT4E20H3BXCXXXSXXX inverter delivers outstanding performance in fields including fans & bombas de agua, manejo de materiales, food & textile industry, tratamiento de agua, achieving an average energy-saving rate of 30-50%. It also extends service life of equipment, improves product quality and cuts maintenance costs. Reasonable configuration shall be conducted according to load characteristics, ambient conditions and control requirements during model selection to maximize its technical advantages.
- Definición del código del modelo
| Código | Significado | Descripción detallada |
| FC-051 | Código de serie | VLT® Micro Drive FC-51 Compact General-purpose Inverter Series |
| P18K | Clasificación de potencia | Matched motor power: 18.5kilovatios / 25caballos de fuerza |
| T4 | Power Supply Spec. | T=Three-phase input; 4=380-480VAC voltage class |
| E20 | Clase de protección | Protección IP20, chassis mounting type |
| H3 | RFI Filter | Equipped with RFI Class A1/B (C1) filtrar |
| B | Unidad de freno | Built-in brake chopper |
| incógnita | Local Control Panel | Without local control panel (LCP to be ordered separately) |
| do | PCB Coating | Coated printed circuit board for higher reliability in harsh environments |
| incógnita | Power Option | Standard power configuration without special options |
| incógnita | Adapter A | Standard cable entry |
| incógnita | Adapter B | No extra adapters |
| SXXX | Versión de software | Latest standard software version |
| M5 | Tamaño del marco | M5 frame (corresponding to 18.5kW power grade) |
| Número de pedido. | 132F0060 | Official unique identification code |
- Especificaciones técnicas básicas
| Categoría | Especificación | Observaciones |
| Parámetros básicos | ||
| Potencia nominal | 18.5kilovatios / 25caballos de fuerza | Matched motor power |
| Corriente de salida nominal | 37A (Trabajo pesado) / 34A (Light-duty) | Current values for different load types |
| Voltaje de entrada | 3-phase 380-480VAC | Allowable fluctuation: ±10% |
| Frecuencia de entrada | 50/60Hz | Auto-adaptive |
| Voltaje de salida | 0~100% of input voltage | Varies with frequency |
| Frecuencia de salida | 0-200Hz (VVC+ Mode) / 0-400Hz (U/f Mode) | Control de vectores / V/f ratio control |
| Control Features | ||
| Modo de control | VVC+ (Voltage Vector Control), U/f Control | Closed-loop vector control available (encoder optional) |
| Capacidad de sobrecarga | 150% corriente nominal para 60 artículos de segunda clase | Standard overload protection |
| Acc/Dec Time | 0.1~3600s | Acceleration and deceleration time set independently |
| Entrada digital | 5 programmable inputs | Support PNP/NPN logic, 0-24VCC |
| Entrada analógica | 1 channel 0-10V/4-20mA | Programmable functions |
| Salida de relé | 2 canales (1 NO + 1 CAROLINA DEL NORTE) | Max switching capacity: 250VAC/2A |
| Physical Properties | ||
| Grado de protección | IP20 | Chassis mounting |
| Método de enfriamiento | Natural cooling + refrigeración por aire forzado | M5 frame with built-in fan |
| Temperatura ambiente | -20°C ~ +50°C | Derating operation required above 40°C |
| Humedad relativa | 5%~95%, sin condensación | Standard industrial environment requirement |
| Peso | Aprox.. 9.98kilos (net weight) | Aprox.. 10.27kg with package |
| Proceso de dar un título & Cumplimiento | ||
| Certificaciones de seguridad | CE, UL, cUL, RoHS | Compliant with EU Low Voltage Directive 2014/35/EU |
| EMC Standard | EN 55011 Clase A | EMC requirement for industrial environment |
| ECCN Code | EU: Y901, US: 3A999.a | Export control classification code |
- Full Series Model List (380-480V Trifásico)
| Fuerza | Modelo | Order Number | Corriente nominal | Tamaño del marco |
| 0.37kilovatios | FC-051PK37T4E20H3BXCXXXSXXX | 132F0001 | 1.1A | M1 |
| 0.75kilovatios | FC-051PK75T4E20H3BXCXXXSXXX | 132F0002 | 2.1A | M1 |
| 1.5kilovatios | FC-051P1K5T4E20H3BXCXXXSXXX | 132F0003 | 3.7A | M1 |
| 2.2kilovatios | FC-051P2K2T4E20H3BXCXXXSXXX | 132F0004 | 5.2A | M1 |
| 3.0kilovatios | FC-051P3K0T4E20H3BXCXXXSXXX | 132F0024 | 7.0A | M2 |
| 4.0kilovatios | FC-051P4K0T4E20H3BXCXXXSXXX | 132F0025 | 9.3A | M2 |
| 5.5kilovatios | FC-051P5K5T4E20H3BXCXXXSXXX | 132F0026 | 12.5A | M3 |
| 7.5kilovatios | FC-051P7K5T4E20H3BXCXXXSXXX | 132F0027 | 17.0A | M3 |
| 11kilovatios | FC-051P11KT4E20H3BXCXXXSXXX | 132F0059 | 25.0A | M4 |
| 15kilovatios | FC-051P15KT4E20H3BXCXXXSXXX | 132F0060 | 32.0A | M5 |
| 18.5kilovatios | FC-051P18KT4E20H3BXCXXXSXXX | 132F0060 | 37.0A | M5 |
| 22kilovatios | FC-051P22KT4E20H3BXCXXXSXXX | 132F0061 | 45.0A | M5 |
- Cross-brand Equivalent Model Comparison
| Danfoss FC-051P18KT4E20H3BXCXXXSXXX | siemens | Schneider | TEJIDO | Replacement Suggestion |
| 18.5kW/37A/380-480V | SINAMICS G120C 6SL3210-1KE22-6UF1 | Altívar 320 ATV320U40N4 | ACS150-03E-04A1-4 | Funciones similares, communication protocols need matching |
| Modo de control: VVC+/U/f | Control de vectores | Control de vectores | Control de par directo DTC | ABB features fastest dynamic response; Schneider offers higher cost performance |
| Built-in brake chopper | External accessory required | Incorporado | External accessory required | Danfoss features more flexible configuration |
| RFI Class A1/B | Optional Class A/B | Built-in Class A | Optional Class A/B | Meet industrial EMC standards |
| Without LCP (comprado por separado) | Standard BOP-2 | Standard keypad | Standard assistant control panel | Siemens owns friendliest operation interface |
Obsolete Replacement: FC-051 is still mainstream without direct discontinued substitutes. For function upgrade, choose Danfoss FC-301 series with richer functions and support for PROFINET and other advanced communication protocols.
- Entorno de aplicación & Industry Cases
Escenarios aplicables
aficionados & Bombas de agua: sistemas de climatización, water treatment plants, cooling towers, realize 30%-50% energy saving via variable frequency speed regulation
Material Conveying: Transportadores, polipastos, maquinaria de embalaje, achieve smooth start/stop and precise speed control
Alimento & Beverage Industry: Filling lines, máquinas etiquetadoras, sterilization equipment, adapt to humid environment with PCB coating protection
Maquinaria Textil: Máquinas de hilar, weaving machines, satisfy low-speed high-torque demands
Small Machine Tools: Drilling machines, fresadoras, grinders, realize accurate speed adjustment
Non-recommended Scenarios
Heavy-duty impact loads: Such as crushers and punch presses (FC-302 series is recommended)
Ocasiones a prueba de explosiones: Special explosion-proof models required (FC-051 has no explosion-proof certification)
Altitude above 1000m: Derating operation needed (1% power reduction per 100m rise)
Ambient temperature over 50°C: Additional cooling measures or derating operation required
Casos de aplicación típicos
- Constant Pressure Water Supply System
Adopt FC-051P18KT4 to control 18.5kW water pump with closed-loop control via pressure sensor, realizing 40% ahorro de energía, stabilizing pipeline pressure and extending equipment service life.
- Packaging Production Line
Four sets of FC-051 series inverters including 18.5kW model are applied to control conveyor speed for synchronous operation, lowering product damage rate and greatly reducing downtime frequency.
- Central Air-conditioner Fan System
Applied in shopping mall air conditioner fans to adjust rotating speed automatically by ambient temperature, ahorrando sobre 28,000 RMB electricity fee annually per unit and reducing operating noise.
- Air Freight Compliance & Proceso de dar un título
Air Freight Regulations
Built-in Capacitor: Equipped with DC bus electrolytic capacitors without lithium batteries, UN38.3 test report is not required
Transport Classification: Non-dangerous goods, deliverable as common electronic products by air
Packaging Requirements
Power off completely with capacitors discharged for more than 5 minutos
Fixed in anti-static package to avoid collision damage
Mark with labels of “Fragile Electronic Equipment” y “This Side Up”
Main Certifications
| Código de falla | Fault Description | Posibles causas | Pasos para solucionar problemas |
| AL16 | Output Short Circuit | 1. Cortocircuito en el devanado del motor | 1. Cut off power and disconnect UVW motor wiring |
| 2. Damaged motor cable | 2. Test three-phase motor winding resistance balance | ||
| 3. Power module failure | 3. Check cable insulation condition | ||
| 4. Reset and test inverter output under no-load state | |||
| AL10 | Motor Overheating | 1. Overloaded operation | 1. Confirm actual load within rated range |
| 2. Poor motor heat dissipation | 2. Clean motor heat sink | ||
| 3. Temperature sensor failure | 3. Inspect PT100 and thermistor connection | ||
| AL51 | DC Bus Undervoltage | 1. Low input voltage | 1. Measure input voltage (rango normal: 342-528V) |
| 2. Phase loss of power supply | 2. Check three-phase power balance | ||
| 3. Rectifier bridge failure | 3. Detect rectifier module output | ||
| AL71 | Inverter Overheating | 1. Temperatura ambiente excesivamente alta | 1. Ensure ambient temperature ≤40°C |
| 2. Cooling fan malfunction | 2. Check fan running status | ||
| 3. Radiator blockage | 3. Remove dust and sundries on radiator | ||
| AL52 | Pérdida de fase de entrada | 1. Power supply phase missing | 1. Measure three-phase input voltage |
| 2. Terminales de cableado flojos | 2. Fasten terminal wiring | ||
| 3. Faulty input contactor | 3. Test contactor switching performance |
- Fallos comunes & Troubleshooting Guide
| Nombre del accesorio | Modelo | Función | Necessity |
| Local Control Panel | LCP 12 | On-site parameter setting and monitoring | Recomendado (not standard equipped) |
| Resistencia de freno | MCE 101-0300 | Dissipate regenerative energy and prevent overvoltage | Mandatory for models with code B |
| Communication Module | FC CAN/Profibus | Realize industrial network connection | Optional on demand |
| Input Filter | H3 Upgrade Kit | Upgrade EMC performance to Class B | Recommended for electromagnetic sensitive occasions |
| Cubierta protectora | FC-051-IP40 | Upgrade protection class to IP40 | Recommended for dusty working sites |
- Selection Rules & Quick Tips
- Coincidencia de poder: Inverter rated current ≥ 1.1 times motor rated current to cope with starting impact
- Voltage Confirmation: Input voltage shall stay within 380-480V with fluctuation ≤±10%
- Brake Configuration: Models with code B have built-in brake choppers, external brake resistors required (power ≥ 30% of motor power)
- Disipación de calor: Keep ventilation space over 10cm for M5 frame; derate 10% power per 5°C rise above 40°C
- Communication Expansion: Additional Modbus/Profibus modules need separate purchase for network communication
- Recommended Key Accessories
| Nombre del accesorio | Modelo | Función | Necessity |
| Local Control Panel | LCP 12 | On-site parameter setting and monitoring | Recomendado (not standard equipped) |
| Resistencia de freno | MCE 101-0300 | Dissipate regenerative energy and prevent overvoltage | Mandatory for models with code B |
| Communication Module | FC CAN/Profibus | Realize industrial network connection | Optional on demand |
| Input Filter | H3 Upgrade Kit | Upgrade EMC performance to Class B | Recommended for electromagnetic sensitive occasions |
| Cubierta protectora | FC-051-IP40 | Upgrade protection class to IP40 | Recommended for dusty working sites |
Full Analysis on Application Cases of Danfoss FC-051P18KT4E20H3BXCXXXSXXX (18.5kilovatios) Inversor
- Overview of Core Application Fields
This 18.5kW/37A/380-480V inverter with built-in brake chopper and coated PCB board is widely applied relying on VVC+ vector control, IP20 protection and high cost performance:
HVAC industry: Central air conditioner fans, cooling towers, bombas de agua
Tratamiento de agua: Constant pressure water supply, aeration tanks, sludge return pumps
Manipulación de materiales: Heavy-duty conveyors, ascensores, logistics sorting lines
Food industry: Filling machines, sterilization equipment, máquinas de embalaje
Textile industry: Máquinas de hilar, weaving machines, setting machines
Building material machinery: Mezcladores, light-duty crushers
- Detailed Introduction of Five Typical Application Cases
Caso 1: Constant Pressure Water Supply for Residential Communities
Original power frequency water supply system suffered from severe pressure fluctuation, high power consumption and frequent pump startup-stop. After adopting FC-051 constant pressure frequency conversion control system with pressure sensor feedback, it realizes sleep & wake-up automatic operation, cutting daily power consumption greatly, stabilizing water supply pressure and prolonging pump service life obviously.
Caso 2: Central Air-conditioner Fan System in Shopping Malls
Replace fixed-speed fan operation with variable frequency temperature closed-loop control, set minimum frequency to avoid fan surging, realize intelligent speed regulation according to indoor temperature, save massive electricity cost annually and lower operating noise effectively.
Caso 3: Food Packaging Production Line Multi-machine Linkage
Adopt multi-speed regulation and synchronous follow-up control to match operating speed of different conveying equipment. Built-in brake chopper achieves rapid stop, reduces material stacking and product damage rate, and improves overall production efficiency. Coated PCB adapts to humid and dusty food workshop environment.
Caso 4: Spinning Machine Control System in Textile Mill
Replace traditional slip speed regulating motor with VVC+ vector control inverter, realize high torque output at low speed, broaden speed regulation range, promote motor operating efficiency, reduce yarn breakage rate and cut daily maintenance frequency.
Caso 5: Aeration System for Sewage Treatment Plant
Match dissolved oxygen sensor to build PID closed-loop control system, automatically adjust fan air volume to keep dissolved oxygen content in optimal range, stabilize sewage treatment effect, reduce invalid energy consumption and lower equipment abrasion.
- Application Scene Matching Table
| Application Scene | Matching Level | Ventajas principales | Notas |
| Constant pressure water supply / circulating pump | ★★★★★ | PI regulation + intelligent logic, prominent energy-saving effect | Equipped with pressure sensor and brake resistor suggested |
| Central air conditioner / cooling tower fan | ★★★★★ | Temperature closed-loop control, low noise and energy saving | Surge prevention setting required, derate at high altitude |
| Heavy conveyor / hoist | ★★★★☆ | Stable start-stop, strong overload resistance | Confirm actual load type in advance |
| Alimento & beverage production line | ★★★★☆ | Multi-speed control, high synchronization precision | Coated PCB for humid environment adaptation |
| Textile printing & dyeing machinery | ★★★★☆ | Low-speed high torque, wide speed range | Add anti-interference measures |
| Sewage treatment aeration system | ★★★★☆ | Precise PID control, energy consumption optimization | Regular radiator cleaning required |
| Heavy impact load equipment | ★☆☆☆☆ | – | Choose FC-302 series instead |
| Explosion-proof working environment | ★☆☆☆☆ | – | Special explosion-proof inverters required |
| Altitude over 2000m | ★☆☆☆☆ | – | Not recommended due to large power derating amplitude |
- Key Selection Points for Practical Application
- Match inverter current reasonably according to actual motor load
- Select models with built-in brake units for frequent start-stop and fast stop working conditions
- Choose U/f control mode for fan & pump loads, VVC+ vector control for transmission and processing equipment
- Prioritize coated PCB models for humid, dusty and corrosive sites
- Select matched external accessories and control panels according to on-site debugging and remote control demands
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